Mitsubishi Electric MELSEC iQ-R Series User Manual page 568

Operation
Event code
20010
20011
20020
20030
20050
27FFE
27FFF
22 TROUBLESHOOTING
566
22.6 List of Event Codes
Overview
Module Data Initialization
Module Data Backup
F/W Update
Online Module Change
Servo Transient Transmission
Execute Soft Reboot
Clear Event History
Cause
The parameter data initialization was executed by the user.
The user executed data backup was executed.
The F/W update was executed by the user.
The online module change was executed by the user.
An object was written with servo transient transmission.
Soft reboot was executed.
Clear Event History was executed.